/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.inlong.sort.filesystem.stream.compact;

import org.apache.inlong.sort.base.dirty.DirtyOptions;
import org.apache.inlong.sort.base.dirty.sink.DirtySink;
import org.apache.inlong.sort.filesystem.stream.AbstractStreamingWriter;

import org.apache.flink.core.fs.Path;
import org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.apache.flink.table.filesystem.stream.compact.CompactMessages.CoordinatorInput;
import org.apache.flink.table.filesystem.stream.compact.CompactMessages.EndCheckpoint;
import org.apache.flink.table.filesystem.stream.compact.CompactMessages.InputFile;

import javax.annotation.Nullable;

/**
 * Writer for emitting {@link InputFile} and {@link EndCheckpoint} to downstream.
 */
public class CompactFileWriter<T>
        extends
            AbstractStreamingWriter<T, CoordinatorInput> {

    private static final long serialVersionUID = 1L;

    public CompactFileWriter(
            long bucketCheckInterval,
            StreamingFileSink.BucketsBuilder<T, String, ? extends StreamingFileSink.BucketsBuilder<T, String, ?>> bucketsBuilder,
            String inlongMetric, String inlongAudit,
            DirtyOptions dirtyOptions,
            @Nullable DirtySink<Object> dirtySink) {
        super(bucketCheckInterval, bucketsBuilder, inlongMetric, inlongAudit, dirtyOptions, dirtySink);
    }

    @Override
    protected void partitionCreated(String partition) {
    }

    @Override
    protected void partitionInactive(String partition) {
    }

    @Override
    protected void onPartFileOpened(String partition, Path newPath) {
        output.collect(new StreamRecord<>(new InputFile(partition, newPath)));
    }

    @Override
    protected void commitUpToCheckpoint(long checkpointId) throws Exception {
        super.commitUpToCheckpoint(checkpointId);
        output.collect(
                new StreamRecord<>(
                        new EndCheckpoint(
                                checkpointId,
                                getRuntimeContext().getIndexOfThisSubtask(),
                                getRuntimeContext().getNumberOfParallelSubtasks())));
    }
}
